{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T15:03:18Z","timestamp":1790348598516,"version":"4.1.0"},"reference-count":42,"publisher":"Optica Publishing Group","issue":"28","license":[{"start":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T00:00:00Z","timestamp":1790294400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T00:00:00Z","timestamp":1790294400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"National Natural Science Foundation of China","award":["U25A20274"],"award-info":[{"award-number":["U25A20274"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Key Research and Development Program of China","award":["2024YFC3015002"],"award-info":[{"award-number":["2024YFC3015002"]}]},{"name":"Postdoctoral Research Foundation of China","award":["2023M743779"],"award-info":[{"award-number":["2023M743779"]}]},{"name":"Graduate Innovation Program of China University of Mining and Technology","award":["2026WLKXJ026"],"award-info":[{"award-number":["2026WLKXJ026"]}],"id":[{"id":"https:\/\/ror.org\/01xt2dr21","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Postgraduate Research Practice Innovation Program of Jiangsu Province","award":["26CXJH4953"],"award-info":[{"award-number":["26CXJH4953"]}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Appl. Opt."],"published-print":{"date-parts":[[2026,10,1]]},"abstract":"<jats:p>\n                    Metasurfaces with the remarkable ability to regulate electromagnetic waves play an increasingly important role in optical and optoelectronic systems. In this study, we theoretically propose a metasurface consisting of four fan-shaped nanorod periodic arrays, which achieves multi-channel near-infrared absorption via electromagnetic multipole resonances. Simultaneously, the effects of structural parameters on the spectral absorptance are investigated, and four near-perfect absorption peaks are obtained after optimization. Furthermore, as a proof-of-concept, the refractive index (RI,\n                    <jats:italic>n<\/jats:italic>\n                    ) sensor driven by the metasurface is used to identify analytes (\n                    <jats:italic>n<\/jats:italic>\n                    =1.00\u22122.00), multi-channel detection peaks offer potential for the RI sensing robustness. Meanwhile, the maximum sensitivity (\n                    <jats:italic>S<\/jats:italic>\n                    ), figure of merit (FOM), and quality factor (\n                    <jats:italic>Q<\/jats:italic>\n                    ) of the designed RI sensor at the four peak wavelengths reach 1056.3\u00a0nm\/RIU, 389.8RIU\n                    <jats:sup>\u22121<\/jats:sup>\n                    , and 1088.5, respectively. In addition, the multi-channel absorption and RI sensing concept can be extended to a cuboid nanorod geometry, further demonstrating the robustness of the designed metasurface. The four-channel detection and outstanding RI sensing performance provide a possible way toward ultrasensitive detection with metasurfaces.\n                  <\/jats:p>","DOI":"10.1364\/ao.610112","type":"journal-article","created":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T14:00:09Z","timestamp":1788876009000},"page":"9819","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Electromagnetic multipole resonance-driven metasurface for high-performance multi-channel refractive index sensing in the near-infrared"],"prefix":"10.1364","volume":"65","author":[{"given":"Kun","family":"Zhou","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01xt2dr21","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoqiang","family":"Zhang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01xt2dr21","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xixian","family":"Sun","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01xt2dr21","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoxing","family":"Zhong","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01xt2dr21","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,9,25]]},"reference":[{"key":"ao-65-28-9819-R1","doi-asserted-by":"publisher","first-page":"225","DOI":"10.1038\/s41928-023-00936-w","type":"journal-article","volume":"6","author":"Yang","year":"2023","journal-title":"Nat. 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All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}